Wristwatch



FIG. 1 is a perspective view of the front and right side of a wristwatch showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view of the rear and right side thereof.

The broken lines in FIGS. 3 and 8 are used to show portions of the wristwatch that do not form part of the claimed design. 

The ornamental design for a wristwatch, as shown and described. 